/Engine/Source/Editor/CurveEditor/Public/Tree/CurveEditorTree.h
Access the user-specified implementation for this tree item
A strong pointer to the implementation or null if it has expired, or was never assigned
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [ICurveEditorTreeItem](API\Editor\CurveEditor\Tree\ICurveEditorTreeItem) > GetItem() const